What is typically the first step when performing recrystallization?

The first step in the recrystallization process is to dissolve the solid compound in a hot solvent. This step is crucial because it allows the desired compound to enter the solution, while impurities remain undissolved or can be removed in later steps. The choice of solvent is important; it must effectively dissolve the compound at elevated temperatures but should allow for the compound to crystallize out when the solution cools. Heating the solvent causes the solubility of the solid to increase, which maximizes the amount of compound that can be dissolved. Once a clear solution is obtained, and impurities are removed, the solution can then be allowed to cool slowly, prompting the recrystallization of the pure compound as the solubility decreases. This is a fundamental technique in organic chemistry for purifying solids.